spectus
Could not find spectu in Logeion dictionaries.
spectu Noun: masculine ablative singular of spectus
spectus, ūs, m. [specio],
- look, appearance, aspect: spectu sine praepositione Pacuvius in Duloreste usus est, cum ait: spectu protervo ferox, Fest. s. h. v. p. 330 Müll.; Pac. Fragm. Trag. v. 147 Rib.
spectus, Abl. ū, m. (specio), der Blick, spectu protervo ferox, Pacuv. tr. 147.
spectŭs, ūs, m. (specio), air, aspect : Pacuv. 147.